获取下拉框多选器

Question

我编写此程序是为了从数据库中获取下拉式多重选择器 数据，并显示多重选择器的所有选项，并突出显示所选选项和其余选项。

 <% String[] skills=(String[])request.getAttribute("skills");
            //skills[]={"Core Java","Hibernate","Sql}; // it is dynamic d
            String[] allSkills={"Core Java","J2ee","Spring","Hibernate","Sql",".net"}; 
        %>

        <tr>
        <td>Skills Known</td>
            <td><select name="skills" multiple STYLE="width: 148px">
            <% for(int i=0;i<allSkills.length-1;i++){
                for (int j=0;j<skills.length-1;j++){
                if(allSkills[i].equals(skills[j])){%>
        <option value=<%=allSkills[i] %> selected="selected"><%=allSkills[i] %></option>
                            <%return; %>    
                <%}else if(j==skills.length-1){%>
                <option value=<%=allSkills[i] %>><%=allSkills[i] %></option>
                <%}
                        }
                    }%>
                    </select>
                    </td>
                    </tr>

Answer 1

<%

/*从数据库中获取技能数组*/

String[] skills = (String[]) request.getAttribute("skills");

/* 在 drop do 中写下所有可用的选项*/

String[] allSkills = { "Core Java", "J2ee", "Spring", "Hibernate", "Sql", ".net" 
>%

/* 多重选择器的代码将是 */

   <tr>
            <td>Skills Known</td>
        <td><select name="skills" multiple STYLE="width: 148px">
                            <%
        for (int counter = 0; counter < allSkills.length; counter++) {
                                    int status = 0;
                                    for (String str : skills) {

                                        if (!(str.equalsIgnoreCase(allSkills[counter]))) {
                                            continue;
                                        } else {
                                            status++;

                                        }
                                    }
                                    if (status > 0) {
                            %>
                            <option value="<%=allSkills[counter]%>" selected="selected"><%=allSkills[counter]%></option>
                            <%
                                } else {
                            %>
                            <option value="<%=allSkills[counter]%>"><%=allSkills[counter]%></option>
                            <%
                                }

                                }
                            %>
                    </select></td>
                </tr>

获取下拉框多选器

Fetch drop down box multi selector

jsp-tags